CVE-2026-74967 in Firefox

Sumário

de MITRE • 18/08/2026

Same-origin policy bypass in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 154, Firefox ESR 140.14, and Firefox ESR 153.1.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

• Responsável: Mozilla
• Reservar: 17/08/2026
• Divulgação: 18/08/2026
• Moderação: aceite
• Entrada: VDB-391618
• CPE: pronto
• CWE: CWE-942 (confirmado)
• CVSS: 3.1 (VulDB)
• EPSS: 0.00124
• KEV: não
• Atividades: muito baixo
• Sector: Insurance, Finance, ...

Fontes

• MITRE: https://www.cve.org/CVERecord?id=CVE-2026-74967
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-74967
• CVE Details: https://www.cvedetails.com/cve/CVE-2026-74967/